Product: Direct Blue 15, Direct Sky Blue 5B
Keep on supplying high performance direct dyes around 20 years with guarantee of Quality and Credit
Blue powder. Soluble in water solution for the red light blue, solubility of 60 g/L (85 ºC), insoluble in organic solvents. Meet strong sulfuric acid as blue light green, diluted red for blue; Meet nitric acid solution for the red light gray. The dye solution to join strong hydrochloric acid for red light blue precipitation; Add thick sodium hydroxide solution for purple, have precipitation. Cellulose fiber of dyeing, the dye well after sex good, in 60 ~ 80 ºC maximum of affinity, discharge the gender is good. Copper ions in dyeing color shade darker. Mainly used for cotton, such as glue the cellulose fibre, silk and rayon / Kam fabric dyeing, also can be used for pulp, biological, film footage of dyeing, can also be used to make the ink.
| Standard |
Acid Resistance |
Alkali Resistance |
Light Fastness |
Soaping |
Water |
| Fading |
Stain |
Fading |
Stain |
| ISO |
4-5 |
4 |
1-2 |
1-2 |
|
1-2 |
|
| AATCC |
5 |
4 |
1-2 |
2 |
|
1 |
Audited Supplier 
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